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Future Minimum Payments Under Non-Cancelable Portion of Operating Leases (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Operating Leased Assets [Line Items]  
2014 $ 2,233
2015 2,282
2016 2,333
2017 2,382
2018 1,351
Thereafter 2,499
Total $ 13,080